August 12, 2017 1:15 pm Forecast: Some Clouds and Showers Mostly cloudy, few showers. Highs in the 70s. Saturday night: Slow clearing, showers fade. Lows in the 60s to near 70. US & World Videos 3:01 Weather: Sunny start to weekend 2:38 Weather forecast: Clear, cool Friday night 2:50 Weekend forecast: It's going to be rather splendid in Boston 3:23 Weather forecast: Warm and mostly dry this weekend 2:45 Chilly in Boston Friday, but there's plenty of sunshine